As expected in a next-generation smartphone, the device will feature the best hardware and software Samsung has to offer. An official from one of Samsung's local partners told the daily paper that most of the changes would in fact be under the hood rather than to the exterior of the device.

"The S4 will see some external changes but retain its popular rectangular shape with rounded corner concept," the official said.

The phone is also thought to maintain several stand-out features from the Galaxy S III including support for LTE networks and use of Samsung's Exynos and Qualcomm's Snapdragon processors depending on the country in which the phone is being sold.

The Galaxy S III came loaded with a number of "human" features. For instance, the phone tracks your eyes when you're looking at the screen and won't shut off as long as you're still trying to look at something. The phone can also wake up using just your voice, and has a "groupcasting" feature for sharing pictures and presentations with other Galaxy S II handsets.

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